Embossing-press.



G. E. PANGOAST. EMBOSSING PRESS. APPLICATION FILED n20.10, 1904. mmnwnn APR. 22, 1912.

1 1 06,473 Patented Aug. 11, 191% Q 2 SHEETS-SHEET 1. Q (7 Z 0 HI I)!!! lllii'liiiil I??? if IIII r ATTORNEYS THE NORRIS PETERS C0,. PHOTO-LITHO.. WASHING-TON. D. C.

G. E. PANCOAST. EMBOSSIN G PRESS. APPLIUATION FILED D110. 10, 1904. nnmzw-nn APR. 22, 1912.

2 s HITS-SHEET 2.

INVENTOR ATTORNEYS Patented Aug. 11, 1914.

5 4 iii UNITED STATES PATENT FFICE.

GEORGE 'E. PANCOAST, OF BROOKLYN, NEW YORK, ASSIGNOR TO AMERICAN LITHO- GRAPHIC COMPANY, A CORPORATION OF NEW YORK.

EMBOSSING-PRESS.

Application filed December 10, 1904, Serial No. 236,303.

Specification of Letters Patent.

To all whom it may concern:

Beit known that I, GEORGE E. PANCOAST, a citizen of the United States, and a resident of Brooklyn, Kings county, State of New York, have invented certain new and useful Improvements in Embossing-Presses, of which the following is a specification.

My invention relates to power presses, and while it may be useful, as embodied in presses operating in various ways on various kinds of material, it is particularly advantageous as applied in presses for embossing paper, and the like, where accurate registry between the material operated upon and the die, or other operating surface, is required.

An object ofthe invention is to providev a construction whereby the capacity of machines of the character referred to is greatly increased. I

Other objects of the invention are to provide a construction whereby danger of inury to the operator or operators of the ma- I chine is avoided; also to provide a construction whereby the machines may be operated rapidly and with great accuracy by rela tively unskilled labor; also to provide a machine which can produce more accurate and more perfect work than the machlnes 1n common use, and in which a plurality of dlfferent jobs can be run off on the machine at the same time.

These and other objects of my invention will more fully appear from the following description. 1

My inventionconsists in the novel parts, improvements, and combinations herein shown and described.

The accompanying drawings, which are referred to herein, and form a part hereof, illustrate one embodiment of my invention, together with a modification thereof, and serve in connection with the description therein, to explain-the principles of the invention.

Of the drawings, Figure 1 isa side elevation of an embossing press constructed in accordance with my invention; Fig. 2 is a longitudinal central section of the upper part of the same; Fig. 3 is a central transverse section of the same taken on the line 3-3 of Fig. 2; and Fig. 4 is a similar view,

illustrating a modification.

The same reference numbers refer to the same parts wherever they appear in the several views.

Referring in detail to the particular embodiment of the invention illustrated in the drawings, 1 represents a base frame, 2 a base, and 3 the fixed impression member of an embossing press which may be of the usual construction, the fixed member being connected with the base by two pairs of tie rods 4 and 5, one pair on each side of the machine, and the movable impression member 6 being guided by suitable guide frames 7 and 8 fixed on the pairs of guide rods 4 and 5. The movable impression member 6 may be operated with the required force by any suitable means such as a pair of toggles 9 indicated in Figs. 2, 3, and l.

The particular embodiment of the invention illustrated is provided with two pairs of Work-holders 10, 11, and 12, 13, and means are provided for moving the members of each pair of work-holders back and forth alternately from a positionbetween the pair of impression members 3 and 6 and suitable feeding. positions outside of the field of operation of said impression members. Any suitable construction of work-holders may be employed and the means for moving them may be constructed and arranged to operate in various ways.

In accordance with the particular construction shown, each of the work-holders consists of a pair of plates 1% and 15 operatively connected together in any suitable way, as by a hinged joint at one end of the holder, so that when the holder is moved from between the impression members to the feeding position, the members of the holder may be separated to receive the sheet to be embossed or other material to be operated upon. In the case of an embossing machine the members of each of the holders are preferably arranged to carry the dies and counter-dies and means for accurately fixing the sheet to be embossed in registering relation with said dies. The dies and counter dies indicated at 16 and 17 respectively, in the holder shown at the right in Fig. 2 may be of ordinary construction, and the means for securing registry between the sheets and the dies may consist of the ordinary registering pins, one of which is indicated at 18 in Fig. 2, a sheet 19 being shown in position thereon. Where the members of the holders are pivotally connected at one end of the holder, as shown, means are preferably provided for accurately fixing the relative positions of the members at the opposite ends of the holders when they are brought together, the means shown consisting of a pin from one member adapted to enter a suitable recess 21 in the other member.

The means employed in the particular embodiment of the invention illustrated for giving the work-h olders their back andforth movements consist of a pair of endless chains 22 and 23 suitably mounted at opposite sides of the impression members 3 and 6, as by means of pairs of sprocket wheels 24 and 25 suitably mounted on the frame at the opposite sides of the impression members. Each of the holders is suitably connected to the pairs of chains. As shown, each. of the holders is pivotally connected to the chains at one end and preferably at the end having the hinged joint between the members of the holder. One member of each pair, to-wit, the members 11 and 12, is connected to the upper stretches of the chains and the other members 10 and 13 of the two pairs are connected to the lower stretches of the chains. free end of each of the holders is, preferably and as shown, supported and controlled by a suitable guide.

The guides for the pair of work-holders 10 and 11 consist of a pair of bars 26 and 27, respectively, the same being. supported by suitable standards 28 and 29 at one side of the machine. I Suitable guide bars 30 and 31 for the pair of work-holders12 and 13 are at the opposite side of the masupported chine by, standards 32 and 33. The sprocket chains may be driven by any suitable means so as alternately to move the pairs of holders back and forth from between the impression members to the feed. positions. As shown, each of the sprocket wheels at the right hand side of the machine as viewed in Fig. 1 is connected by suitable gears to a trans- Verse shaft 34 j ournaled at a suitable pointbelow the sprocket wheel and provided at one end with a pinion 35 arranged to mesh with a segment gear 36, which receives an oscillating motion from a crank 37 by means vof a connecting rod 38.

In order that the work-holders may rest a suitable length of time at the ends of their strokes, as required to permit the impressions to be made and to permit the operator or 0perators to place the sheets in the holders, the crank 37 is intermittently driven through half of a revolution. This intermittent movement of the crank may be effected by any suitable mechanism. As shown, the crank is driven from the main shaft of the press by means of segment 39 fixed to the main shaft and arranged to mesh on each revolution of the shaft with a gear 40 fixed on a shaft 41. suitably j ournaled in the frame. The shaft4l carries a second gear 42 which is connected with the crank 37 by The opposite or a pair of gears 43 and 44. 1 To look the gears and crankagainst movement during the intervals when the segment 39 is out of mesh with the gear 40 a locking disk 45 is fixed on the main shaft and is arranged. to engage suitable recesses in a plate 46 carried by thev shaft 41.

Any suitable means may be provided for separating the members of the respective holders and holding said members separated while the holders are in the sheet feeding positions. As shown, a supporting arm 47 is arranged at each side'of the machine and a grapple device 48 is suspended from said arm preferably by a fiexibleconnection 49.

The grapple device 48 is preferably, and as shown, provided with a pair of laterally projecting pins 50, 51,0ne arranged just below the level of the upper'hinged member 14 of each of the corresponding pairs of workholders as the free ends ofsaidwork-holders move along their respective guide rails. In

accordance with the, construction shown,

each of the grapple devices 48 is suspended in line with the recesses215in hinged members of the corresponding pair of work 7 holders. It follows from this construct on v 7 that as each of thework-holders moves toward its sheet feeding position the corresponding grapple will enterthe recess2l of g the hinged member of the holder, and as the holder continues to move the. pinf5O or- 51 corresponding to the particular holder will engage the under surface'Tof thev hinged member thereof and: cause it to swing upthe grapple device a guide 52 is adjustably mounted on the end of the arm 47 in position toengage the flexible connection 49 at an intermediatepoint as itjswings outwardly and upwardly and the fixed end of the said connection is made adjustable in a horizontal direction by a Collar53 adjustably fixed to the arm 47; p f,

.l' t will be noted that when two pairsof work-holders are employed, as in the embodiment of the invent-ion above described, two work-holders are located between the impression members on eachoperation of the latter. For the'purpose of equalizing the pressure between these work-holders, an intermediate plate 54 isfpreferably arranged between. the impression members in such manneras to divide the space between the impression members into two compartments, one adjacent to. each impression member, and each of said compartments being, adapted to receive a work-holder, As shown, the, plate 54 is loosely guided by pairs of vertical rods 55 and 56 so that as the. impression member 6 movesupwardly, the plate 54 may be carried upwardly contact with the liopressure to the holder in the upper compart- 100 wardly as the holder approaches the feeding position. For the purposeiof controlling the operation" of ment. To permit the work-holders between the impression members to move freely upwardlywith the impression member 6 the pivotal connections between the holders and the pairs of chains are provided with lost motion in a vertical direction, as clearly shown in Fig. 1.

It will be noted that a machine constructed as described will produce two impressions on each operation of the impression members and that during the time these impressions are being made there will be work-holders in position to have the embossed sheets removed and new sheets placed in position. A great saving in time is thus eiiected, the capacity of the machine being about four times that of an ordinary embossing press having asingle pair of impression members. Another important advantage of the construction. described is that the sheets are removed from and placed between the dies while the latter are outside of the space between the impression members and widely separated so as to afford ample space for the manipulation of the sheet. By reason of this construction each of the sheets to be embossed may be readily placed in registering relationwith the dies by a-single workman and with the exercise of a less degree of skill than is required for the manipulation of the sheets in the embossing presses of ordinary construction where two skilled operators are requiredto remove the embossed sheets and place the sheets to be embossed between the dies carried directly by the impression members of the press. There is also much less danger or injury to the workman in operating my improved machine than is the case with the ordinary embossing presses. i

Where the machine is provided with two pairs of work-holders asdescribed, two opera-tors are required, one at each side of the machine, but a less degree of skill is required of these operators than is the case with the ordinary embossing press, and each of them will be enabled to remove and place twice as many sheets as could be manipulated by two skilled workmen 1n the ordi nary press. It is to be observed that some of the advantages of my improvements may be realized, thoughnot to the same extent, in a machine in which a single, pair of work- For instance, whlle an holders is utilized. ordinary embossing press requires for its operation the attendance of two highly skilled workmen, a press embodying my invention "and having the members ofbut a single pair or work-holders provided with dies, will have twice the capacity of the ordinary press and will require the attendance of but a single workman, exercising an inferior degree of skill, and moreove the liability of injury of the operator is eliminated. In this case the membersof the second pair of work-- holders will act to fill partly the space between the'impression members; or, if desired, the machine may be constructed with but a single pair of work-holders. Such a machine is illustrated by way of example in Fig. 4. In this case the second pair of work-holders is replaced by a series of rollers or bars 57 mounted at their opposite ends in the workholder driving chains 22 and 28, said rollers or bars being moved back and forth alternately from one compartment to the other as required properly to fill the space between the impression members during each opera tion thereof. It is to be understood therefore that my invention in its broader aspects is not limited to the particular constructions herein shown and. described nor to any particular construction by which it has been or may be carried into effect, as many changes may be made in the construction without departing from the main principles of the in vention and without sacrificing its chief advantages.

Having thus described my invention, what I claim as new, and desire to secure by Let ters Patent, is 2- 1. A, power press including in combination, a pair of impressionmembers, a pair of workholders, and means for moving said workholders from a position between said impression members to a common feeding position in such manner that when either workholder is in one position the other work holder is in the other position.

2. An embossing press including in combination, a pair of impression members, a pair of die carrying members, and means for moving said die carrying members back and forth from a position between said impression members to a common feed position.

3. An embossing press including in combination, a pair of impression members, a wcrkholder consisting of die and counterdie carrying members operatively connected with each other, and means for moving said work holder back and forth from a position between said impression members to a feed position at one side of said impression members, and means for operating the workholder members to receive and discharge sheets.

l. An embossing press including in combination, a pair of impression members, a work-holder consisting of die and counterdie carrying members operatively connected to each other, means for fixing the sheet to be embossed in accurate registering relation to the die and counter-die on said die carrying members, and means for moving said work holder back and forth from between said impression members to a sheet feeding position at one side of said impression members.

5. An embossing press including in combination, a pair of impression members, a

together, means for moving said workholder back and forth from a position between said impression members to a sheet feeding position at the side of said impression members, and means for separating said die and counter-die'carrying members and holding them separated while the workholder. is inthe sheet feeding position.

6. An embossing press including in combination, a pair of impression members, a pair of work-holders each consisting of die and counter-die carrying members operatively connected together, and means for moving said work-holders back and forth alternately from a position between said impression members to suitable sheet feeding positions.

7. An embossing press including in combination, apair of impression members, a pair of work-h0lders each consisting of die and counter-die carrying members operatively connected together, and means for moving said work-holders back and forth alternately from a position between said impression members to a common feeding position at one side of said impression members.

8. An embossing press including in combination, a pair of impression members, a pair of worleholders, and means consisting of endless chains, suitable guides, and driving means for reciprocating said work-holders alternately from and to sheet feeding positions into and out of the space between said impression members;

9., An embossing press including in combination, a pair of impression members, a

pair of work-holders, each consisting of die and counter-die carrying members operaitvely connected together, and means consisting of endless chains, suit-able guides and driving means for reciprocating said workholders alternately into and out of the space between. sald lmpression members.

10. An embossing press including in com-- bination. a pair of impression members mounted to operate in horizontal planes, means for operating said members, a pair of work-holders, each consisting of die and counter-die carrying plates hinged together at one edge, means for fixing the sheets to be embossed in accurate registering relation with the die and counter-die carried by said plates, means consisting of endless chains,

suitable guides and driving means for re ciprocating said work-holders from a position between said impresslon members to a common sheet feedmg pos1t1on at one side of said impression members, and means for separating said die and counter-die carrying plates and holding them separated while in the sheet feeding position.

11 A power press including-in combina- 131011, a pair of impressmn'members,means for dividing the space between said members into a pluralityof compartments, a plnrality ,of-work-holders, and means for moving said work-holders back and forth from said compartmentsvto a plurality of feed positions. V p V 12. Anembossing press including in combination, a pair of impression members,

means'for dividing the space between said members into two compartments, one adjacent to each impression member, a pair of work-holders, andv means for moving said work-holders back and forth'from said compartments to two sheet feeding positions.

13. An embossing pressincluding in combination, a pair of impression members, a plate for dividing the space between said members into two compartments, one adja cent to each of said impression members, a pair of work-holders, each consisting of die and counter-die carrylng members opera-' tively connected together, and means for reciprocatlng said i work holders alternately into and out of said compartments. p

1 1. A power press including in combination, a pair of impression members, two

pairs of work-holders and means whereby the members of the pairs of work-holders are moved back and forth from a position between said impression members to two feed positions, two workholders being. between the impression members at the same time. y

15. A power press tion, a pair of impressionmembers, two pairs of work-holders and means whereby the members of each pair of work-holders are moved back and forth from a position between said impression members to one of two feed positions. i

16. A power press, including in combination, a pair of impression members, two

pairs of work-holdersand means whereby;

the members of each pair of work-holders are moved back and forth from a position between said impression members to a common feed position, the feed positions of the respective pairs of work-holders being on opposite sides of the machine.

17. An embossing press including in combination, a pair of impression members, two

pairs of work-holders each consisting of die and counter-die carrying plates operatively connected together, and means whereby themembers of each pair of work-holders are moved back and forth alternately from a position between said impression members to a common feed position, the feed positions of the respectivepairs of work-holders being on opposite sides of the machine.

18. An embossing press includingin combination, a pair of impression members, two

pairs of work-holderseach workholder con ncluding 1n combina- V sisting of die and counter-die carrying plates operatively connected together, and means whereby the members of each pair of work-holders are moved back and forth al ternately from a position between said impression membersto a common feed position, the feed positions of the respective pairs of work-holders being on opposite sides of the machine, and means forseparating the die and counterdie carrying plates of each work-holder, and holding them separated while the work-holder is in its sheet feeding position.

19. An embossing press including in combination, a pair of impression members, two pairs of work-holders, each work holder consisting of die and counter-die carrying plates operatively connected together, and a pair of endless chains, suitable guides and driving means for reciprocating the members of each pair of work-holders alternately into and out of the space between said impression members, one member of each pair of work-holders being located between said impression members during each pressing operation of the latter.

20. An embossing press including in combination, a pair of impression members, means for dividing the space between said members into two compartments, one adjacent to each impression member, two pairs of work-holders, and means for reciprocating the members of each pair of work-holders alternatelyinto and out of said compartments and into and out of one of two feed positions. v

21. An embossing press including in combination, a pair of impression members, means for intermittently operating said impression members, means for dividing the space between saidimembers into two com- )artments' one ad'acent to each im aression member, two pairs of work-holders, and means for reciprocating the members of each pair of work-holders between said compartments to a common feed position, the feed positions of the respective pairs of workholders being at opposite sides of the machine, and one member of each pair of workholders being located in one of said compartments during each operation of the im pression members, and the other member of each pair of work-holders being in therespective feeding posit-ions at opposite sides of the machine.

22. An embossing press including in combination, a pair of impression members mounted to operate in horizontal planes,

means for intermittently operating said impression members, a horizontal plate for dividing the space between said members into two compartments one above the other, two pairs of work-holders each consisting of die and counter-die carrying plat-es hinged together along one of their adjacent sides and having means for fixing the sheets to be embossed in accurate registering relation with the die and counter-die carried by .aid plates, means consisting of endless chains, suitable guides and driving devices for moving the members of each pair of work-holders back and forth alternately from said com iartments to a common sheet feeding position, andmeans for separating the die carrying plates of said work-holders and holding them separated while in their sheet 'feedingpositions.

23. A power press including in combination, suitable impression members, a plurality of pairs of workholders, and means for moving said pairs of workholders back and forth from the space between said impression members to a plurality of feeding positions, one for each pair.

24-. An embossing press including in combination, a pair of impression members, means for dividing the space between said members into a plurality of compartments,

a corresponding plurality of work-holders each comprising die and counter-die carrying members operatively connected together, and means for moving said work-holders simultaneously into and out of their respective compartments.

An embossing press including in combination, a pair of impression members one only of which is movable with respect to the other, means movable with respect to each of said members for dividing the space between said members into a plurality of compartments, a corresponding plurality of work-holders, and means for moving said work-holders simultaneously into and out of their respective compartments.

26. An embossing press including in combination, a pair of impression members one of which is movable with respect to the other, means movable with respect to each. of said members for dividing the space between said members into a plurality of compartments, a corresponding plurality of work-holders, each comprising die and counter-die carrying members operatively connected together, and means for moving said work-holders simultaneously into and out of their respective compartments.

27. An embossing press comprising a plurality of impression members one only of which is movable with respect to the other and movable means located between said members to divide the space between them into a plurality of variable compartments.

28. A power-press including, in combination, a pair of impression members, two pairs of working holders and means whereby the members of the pairs of working hold ers are moved back and forth from a position between said impression members to two feed positions, two work holders being between the impression members at the same time, and means for equalizing the pressure on the work holders during the embossing operation. 29. In an embossing press the combination of a plurality of work holders, a plurality of impression members one only of which is movable with respect to the other and- 11183118 for dividing the space between said members into a plurality of compartments, said'means being movable toward or away 1 from each of said members so that substantially equal pressure will be placed upon each'work holder during the embossing operation. 30. In an embossing press, the combination of a pair of impression members, one only of whichis, or need be movable, movable means located between said members adapted to divide the space between them, into aplurality of compartments, a pair of I Copies of this patent fii'ay brobtained for fi've cents Washington, D. 0.

Work-holders for each compartment, all adapted to be moved by a common meansso that when one of each pair is in embossing position, the vother will be in work-delivering or receiving position, one on each side ot'the machine. V

31. In an embossinggpress, the combination of a movable and a fixed impression member, a plurality of work-holders adapted to be placed between said members simultaneously, and means whereby the pressure of said impression members will be equally applied to. the work in each work-holder, In testimony whereof, I have signed my name to this specification, in the presence of twosubscribing witnesses v a GEORGE EQPANGOAST.

WVitnesses: I

JACOB M'ILLER, CHARLES S. BURGESS.

each, by addressing the Commissioner of Patents; 

